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Vocabulary 4 Genetic

Vocabulary

DefinitionTerm
A _______ is a characteristic, such as seed color. Trait
The passing to offspring is called ____________. Heredity
The study of heredity is called _________. Genetics
Factors that control traits is called ______________. Genes
A _______ allele always shows up in an organism. Dominant
A _______ has two different alleles for a trait. Hybrid
A ________ ____ is hidden whenever the dominant allele is present. Recessive Allele
Is the way an organism looks. Phenotype
Is the genetic makeup, or combination of alleles in an organism. Genotype
Two of the same alleles for a trait is ____________. Homozygous
Two different alleles for a trait is _________. Heterozygous
An ___________ in an organism develops after its born. Acquired trait
Organisms can aquire traits from their environments. A flamingo is pink because it eats pink food. Environmental:
Organisms can acquire traits, like the ability to ride a skateboard, by learning and remembering skills and information. Learned:
Manipulated traits, such as coiled bamboo, are created by human design. People can change both inherited and acquired traits. Manipulated:
_____ determines the inherited traits of an organism. DNA
__________ are short thick coils of coils. Chromosomes
How many chromosomes are in human cells? 46
Big "b" is an allele little "b" is an allele they make up your Genes
How many chromosomes are in human gametes (egg or sperm)? 23
Why do body cells have twice as many chromosomes as gametes? Gametes (eggs & sperm) have 23 because when combine and create a new cell that will becomme a individual baby. With a complete set of 46 chromosomes. A gene is a short piece of DNA that determines the trait of an organism.
Created by: 17tsmith1